<template>
  <div class="app-container">
    <div class="search-bar">
      <el-form ref="queryFormRef" :model="queryParams" :inline="true">
        <el-form-item label="关键字" prop="keywords">
          <el-input v-model="queryParams.keywords" placeholder="菜单名称" clearable @keyup.enter="handleQuery" />
        </el-form-item>
        <el-form-item>
          <el-button type="primary" icon="search" @click="handleQuery">搜索</el-button>
          <el-button icon="refresh" @click="handleResetQuery">重置</el-button>
        </el-form-item>
      </el-form>
    </div>

    <el-card shadow="never">
      <div class="mb-10px">
        <el-button v-hasPerm="['/admin/rbac/route/add']" type="success" icon="plus" @click="handleOpenDialog(0)">
          新增
        </el-button>
      </div>

      <el-table v-loading="loading" default-expand-all :data="menuTableData" highlight-current-row row-key="id"
        :tree-props="{
          children: 'children',
          hasChildren: 'hasChildren',
        }" @row-click="handleRowClick">
        <el-table-column label="菜单名称" width="220">
          <template #default="scope">
            <template v-if="scope.row.ext[2] && scope.row.ext[2].startsWith('el-icon')">
              <el-icon style="vertical-align: -0.15em">
                <component :is="scope.row.ext[2].replace('el-icon-', '')" />
              </el-icon>
            </template>
            <template v-else-if="scope.row.ext[2]">
              <svg-icon :icon-class="scope.row.ext[2]" />
            </template>
            {{ scope.row.name }}
          </template>
        </el-table-column>

        <el-table-column label="类型" align="center" width="80">
          <template #default="scope">
            <el-tag v-if="scope.row.type == MenuTypeEnum.CATALOG" type="warning">目录</el-tag>
            <el-tag v-if="scope.row.type == MenuTypeEnum.MENU" type="success">菜单</el-tag>
            <el-tag v-if="scope.row.type == MenuTypeEnum.BUTTON" type="danger">按钮</el-tag>
            <el-tag v-if="scope.row.type == MenuTypeEnum.EXTLINK" type="primary">接口</el-tag>
          </template>
        </el-table-column>
        <el-table-column label="路由名称" align="center" width="140" prop="ext[0]" />
        <el-table-column label="路由路径" align="center" prop="path" />
        <el-table-column label="组件路径" align="center" width="220" prop="ext[1]" />
        <el-table-column fixed="right" align="center" label="操作" width="220">
          <template #default="scope">
            <el-button v-if="scope.row.type == '1' || scope.row.type == '2'" v-hasPerm="['/admin/rbac/route/add']"
              type="primary" link size="small" icon="plus" @click.stop="handleOpenDialog(scope.row.id)">
              新增
            </el-button>

            <el-button v-hasPerm="['/admin/rbac/route/update']" type="primary" link size="small" icon="edit"
              @click.stop="handleOpenDialog(undefined, scope.row.id, scope.row)">
              编辑
            </el-button>
            <el-button v-hasPerm="['/admin/rbac/route/del']" type="danger" link size="small" icon="delete"
              @click.stop="handleDelete(scope.row.id)">
              删除
            </el-button>
          </template>
        </el-table-column>
      </el-table>
    </el-card>

    <el-drawer v-model="dialog.visible" :title="dialog.title" size="50%" @close="handleCloseDialog">
      <el-form ref="menuFormRef" :model="formData" :rules="rules" label-width="100px">
        <el-form-item label="父级菜单" prop="pid">
          <el-tree-select v-model="formData.pid" placeholder="选择上级菜单" :data="menuOptions" filterable check-strictly
            :render-after-expand="false" :props="{ label: 'name', value: 'id' }" />
        </el-form-item>

        <el-form-item label="菜单名称" prop="name">
          <el-input v-model="formData.name" placeholder="请输入菜单名称" />
        </el-form-item>

        <el-form-item label="菜单类型" prop="type">
          <el-radio-group v-model="formData.type" @change="handleMenuTypeChange">
            <el-radio :value="1">目录</el-radio>
            <el-radio :value="2">菜单</el-radio>
            <el-radio :value="3">按钮</el-radio>
            <el-radio :value="4">api接口</el-radio>
          </el-radio-group>
        </el-form-item>

        <!-- <el-form-item v-if="formData.type == 'EXTLINK'" label="外链地址" prop="path">
          <el-input v-model="formData.path" placeholder="请输入外链完整路径" />
        </el-form-item> -->

        <el-form-item v-if="formData.type == MenuTypeEnum.MENU" prop="routeName">
          <template #label>
            <div class="flex-y-center">
              路由名称
              <el-tooltip placement="bottom" effect="light">
                <template #content>
                  如果需要开启缓存，需保证页面 defineOptions 中的 name 与此处一致，建议使用驼峰。
                </template>
                <el-icon class="ml-1 cursor-pointer">
                  <QuestionFilled />
                </el-icon>
              </el-tooltip>
            </div>
          </template>
          <el-input v-model="formData.ext[0]" placeholder="User" />
        </el-form-item>

        <el-form-item v-if="formData.type == MenuTypeEnum.CATALOG || formData.type == MenuTypeEnum.MENU" prop="path">
          <template #label>
            <div class="flex-y-center">
              路由路径
              <el-tooltip placement="bottom" effect="light">
                <template #content>
                  定义应用中不同页面对应的 URL 路径，目录需以 / 开头，菜单项不用。例如：系统管理目录
                  /system，系统管理下的用户管理菜单 user。
                </template>
                <el-icon class="ml-1 cursor-pointer">
                  <QuestionFilled />
                </el-icon>
              </el-tooltip>
            </div>
          </template>
          <el-input v-if="formData.type == MenuTypeEnum.CATALOG" v-model="formData.path" placeholder="system" />
          <el-input v-else v-model="formData.path" placeholder="user" />
        </el-form-item>

        <el-form-item v-if="formData.type == MenuTypeEnum.MENU" prop="component">
          <template #label>
            <div class="flex-y-center">
              组件路径
              <el-tooltip placement="bottom" effect="light">
                <template #content>
                  组件页面完整路径，相对于 src/views/，如 system/user/index，缺省后缀 .vue
                </template>
                <el-icon class="ml-1 cursor-pointer">
                  <QuestionFilled />
                </el-icon>
              </el-tooltip>
            </div>
          </template>

          <el-input v-model="formData.ext[1]" placeholder="system/user/index" style="width: 95%">
            <template v-if="formData.type == MenuTypeEnum.MENU" #prepend>src/views/</template>
            <template v-if="formData.type == MenuTypeEnum.MENU" #append>.vue</template>
          </el-input>
        </el-form-item>

        <el-form-item v-if="formData.type === MenuTypeEnum.CATALOG || formData.type === MenuTypeEnum.MENU">
          <template #label>
            <div class="flex-y-center">
              始终显示
              <el-tooltip placement="bottom" effect="light">
                <template #content>
                  选择“是”，即使目录或菜单下只有一个子节点，也会显示父节点。
                  <br />
                  选择“否”，如果目录或菜单下只有一个子节点，则只显示该子节点，隐藏父节点。
                  <br />
                  如果是叶子节点，请选择“否”。
                </template>
                <el-icon class="ml-1 cursor-pointer">
                  <QuestionFilled />
                </el-icon>
              </el-tooltip>
            </div>
          </template>

          <el-radio-group v-model="formData.alwaysShow">
            <el-radio :value="1">是</el-radio>
            <el-radio :value="0">否</el-radio>
          </el-radio-group>
        </el-form-item>


        <el-form-item label="排序" prop="sort">
          <el-input-number v-model="formData.sort" style="width: 100px" controls-position="right" :min="0" />
        </el-form-item>

        <!-- 权限标识 -->
        <el-form-item v-if="formData.type == MenuTypeEnum.BUTTON || formData.type == MenuTypeEnum.EXTLINK" label="权限标识"
          prop="path">
          <el-input v-model="formData.path" placeholder="sys/user/add" />
        </el-form-item>

        <el-form-item v-if="formData.type !== MenuTypeEnum.BUTTON" label="图标" prop="icon">
          <!-- 图标选择器 -->
          <icon-select v-model="formData.ext[2]" />
        </el-form-item>

        <el-form-item v-if="formData.type == MenuTypeEnum.CATALOG" label="跳转路由">
          <el-input v-model="formData.ext[3]" placeholder="跳转路由" />
        </el-form-item>
      </el-form>

      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="handleSubmit">确 定</el-button>
          <el-button @click="handleCloseDialog">取 消</el-button>
        </div>
      </template>
    </el-drawer>
  </div>
</template>

<script setup lang="ts">
defineOptions({
  name: "SysMenu",
  inheritAttrs: false,
});

import MenuAPI, { MenuForm, MenuQuery, MenuVO } from "@/api/system/menu";
import { MenuTypeEnum } from "@/enums/MenuTypeEnum";

const queryFormRef = ref(ElForm);
const menuFormRef = ref(ElForm);

const loading = ref(false);
const dialog = reactive({
  title: "新增菜单",
  visible: false,
});

// 查询参数
const queryParams = reactive<MenuQuery>({});
// 菜单表格数据
const menuTableData = ref<MenuVO[]>([]);
// 顶级菜单下拉选项
const menuOptions = ref<any>([]);
// 初始菜单表单数据
const initialMenuFormData = ref<MenuForm>({
  id: undefined,
  pid: 0,
  visible: 1,
  sort: 1,
  type: MenuTypeEnum.MENU, // 默认菜单
  alwaysShow: 0,
  keepAlive: 1,
  ext: ["", "", "", ""] // name, 组件路径，图标，重定向地址
});
// 菜单表单数据
const formData = ref({ ...initialMenuFormData.value });
// 表单验证规则
const rules = reactive({
  pid: [{ required: true, message: "请选择父级菜单", trigger: "blur" }],
  name: [{ required: true, message: "请输入菜单名称", trigger: "blur" }],
  type: [{ required: true, message: "请选择菜单类型", trigger: "blur" }],
  routePath: [{ required: true, message: "请输入路由路径", trigger: "blur" }],
  visible: [{ required: true, message: "请选择显示状态", trigger: "change" }],
});

// 选择表格的行菜单ID
const selectedMenuId = ref<string | undefined>();

// 查询菜单
function handleQuery() {
  loading.value = true;
  MenuAPI.getList(queryParams)
    .then((data: any) => {
      menuTableData.value = data.tree;
    })
    .finally(() => {
      loading.value = false;
    });
}

// 重置查询
function handleResetQuery() {
  queryFormRef.value.resetFields();
  handleQuery();
}

// 行点击事件
function handleRowClick(row: MenuVO) {
  selectedMenuId.value = row.id;
}

/**
 * 打开表单弹窗
 *
 * @param pid 父菜单ID
 * @param menuId 菜单ID
 */

function handleOpenDialog(pid?: number, menuId?: string, data?: any) {
  menuOptions.value = [{ pid: 0, name: "顶级菜单", id: 0, children: menuTableData.value }];
  dialog.visible = true;
  if (menuId) {
    dialog.title = "编辑菜单";
    Object.assign(formData.value, data);
  } else {
    dialog.title = "新增菜单";
    formData.value.pid = pid;
  }
}

// 菜单类型切换
function handleMenuTypeChange() {
  // 如果菜单类型改变
  if (formData.value.type != initialMenuFormData.value.type) {
    if (formData.value.type == MenuTypeEnum.MENU) {
      // 目录切换到菜单时，清空组件路径
      if (initialMenuFormData.value.type == MenuTypeEnum.CATALOG) {
        formData.value.ext[1] = "Layout";
      } else {
        // 其他情况，保留原有的组件路径
        formData.value.path = initialMenuFormData.value.path;
        formData.value.component = initialMenuFormData.value.component;
      }
    } else if (formData.value.type == MenuTypeEnum.CATALOG) {
      formData.value.ext[1] = "Layout";
    }
  }
}

/**
 * 提交表单
 */
function handleSubmit() {
  menuFormRef.value.validate((isValid: boolean) => {
    if (isValid) {
      const menuId = formData.value.id;
      if (menuId) {
        //修改时父级菜单不能为当前菜单
        if (formData.value.pid == menuId) {
          ElMessage.error("父级菜单不能为当前菜单");
          return;
        }
        MenuAPI.update({ id: menuId, ...formData.value }).then(() => {
          ElMessage.success("修改成功");
          handleCloseDialog();
          handleQuery();
        });
      } else {
        MenuAPI.add(formData.value).then(() => {
          ElMessage.success("新增成功");
          handleCloseDialog();
          handleQuery();
        });
      }
    }
  });
}

// 删除菜单
function handleDelete(menuId: number) {
  if (!menuId) {
    ElMessage.warning("请勾选删除项");
    return false;
  }

  ElMessageBox.confirm("确认删除已选中的数据项?", "警告", {
    confirmButtonText: "确定",
    cancelButtonText: "取消",
    type: "warning",
  }).then(
    () => {
      loading.value = true;
      MenuAPI.deleteById(menuId)
        .then(() => {
          ElMessage.success("删除成功");
          handleQuery();
        })
        .finally(() => {
          loading.value = false;
        });
    },
    () => {
      ElMessage.info("已取消删除");
    }
  );
}

function resetRorm() {
  menuFormRef.value.resetFields();
  menuFormRef.value.clearValidate();
  formData.value = {
    id: undefined,
    pid: 0,
    visible: 1,
    sort: 1,
    type: MenuTypeEnum.MENU, // 默认菜单
    alwaysShow: 0,
    keepAlive: 1,
    ext: ["", "", "", ""]
  };
}

// 关闭弹窗
function handleCloseDialog() {
  dialog.visible = false;
  resetRorm();
}

onMounted(() => {
  handleQuery();
});
</script>
